Foldable seat



May 30, 1950 R. E. BURCH 2,509,420

FOLDABLE SEAT Filed April 21, 1948 1N VEN TOR.

A TTORNEY Patented May 30, 1950 UNITED STATES PATENT OFFICE FOLDABLESEAT Roy E. Burch, Midland, Mich.

Application April 21, 1948, Serial No. 22,365

1 Claim.

This invention relates to a foldable seat structure adapted to beassociated with backless benches or plank bleachers such as used infootball stadiums, grandstands, and similar buildings.

Gne of the prime objects of the invention is to design a very simple,practical, and relatively inexpensive, lightweight, foldable seatstructure which can be readily folded into a compact bundle for easycarrying and/or storage, and

which is provided with flexible canvas or cloth seat :and backrestsections to prevent the users clothing from Contact with the surface ofthe stadium bench or plank, and provide a comfortable backrest, enablingthe owner to relax in comfort and enjoy the spectacle or game beingplayed.

A further object is to provide an adjustable seat which can be readilyadjusted to suit benches or planks of varying widths and/or size.

Still a further object is to design a lightweight seat which can bereadily manufactured and assembled, and which is foldable into a compactbundle for convenient and easy transportation from place to place.

With the above and other objects in view, the present invention consistsin the combination and arrangement of parts, hereinafter more fullydescribed, illustrated in the accompanying drawing, and moreparticularly pointed out in the appended claim, it being understood thatchanges may be made in the form, size, proportion, and minor details ofconstruction, without departing from the spirit, or sacrificing any ofthe advantages of the invention.

In the drawing:

Fig. l is a perspective, elevational View of my foldable sea-t, showingit in place on a, plank such as customarily serves as a stadium seat.

Fig. 2 is a side-elevational view thereof.

Fig. 3 is a fragmentary, side-elevational view illustrating theadjustable leg.

Fig. 4 is a view showing the seat folded for carrying.

Referring now more specically to the drawing in which I have shown thepreferred embodiment of my invention. The numeral 5 indicates the plankor raised bench such as found in stadiums in general, and this isusually formed of a single piece of material of standard width, or itmay comprise spaced-apart sections of the same general width.

My foldable seat comprises a back frame 6, bowed as clearly shown inFig. 1 of the drawing, and spaced apart legs 'I and 8 are pivotallyconnected to the end sections s of this bowed back at a point spacedfrom the lower ends thereof by means of pins or bolts Ill, the lower endsections 9 of the back frame bearing against the rear edge of the plank,and as clearly shown in Fig. 2.

These legs I and 8 are adjustable as to length, the one end beingthreaded as at II, and one end I2 of a hook member I3 has threadedengagement therewith, the opposite end I4 being turned inwardly to formsubstantially U-shaped hooks which fit over the front edge of the plank5, and lit will be obvious that these legs can be adjusted as desired bythreading the member I3 into or out of the legs, and then tightening thelocking nut I5 to hold it in set position.

The upper section of the bowed back frame 6 is bent rearwardly as shownat I6 and a cloth or canvas I'I spans said frame and is secured theretoin any approved manner to form a comfortable and. flexible backrest, andlooped tabs I3 are provided on this cloth backrest and for a purpose tobe presently described.

A similar cloth or canvas strip I9 spans the legs 7 and 8, and forms theseat of the structure, and these members I'I and I9 are readily washableso that a clean, neat appearing structure can be had.

In practice, the structure is set up as clearly shown in Figs. 1 and 2of the drawing. The hook-shaped end sections I3 of the legs are adiustedto span the support 5 and the structure is then ready for use, providinga comfortable and clean chair which can be easily and quickly set upand/or folded for carrying purposes or folded for storage when not inuse.

From the foregoing description, it will be obvious that I have perfecteda very simple, practical and inexpensive foldable seat structure, whichis convenient in use, and whichr can be folded into a very compactbundle for carrying or storage.

What I claim is:

A foldable seat structure adapted to be mounted on a backless support,and comprising a bowed backframe, a pair of internally threadedadjustable legs pivotally connected to the lower end sections of thebowed back frame at a point spaced from the free ends thereof,longitudinally adjustable U-shaped end hooks forming part of said legs,one end of each U-shaped hook being threaded for engagement with one ofsaid legs, locking means for securing the hooks in adjusted position, aflexible backrest spanning said back frame, and tabs on said flexiblebackrest and accommodating the free ends of the U-shaped members forsecuring the seat in its folded position.

ROY E. BURCH.

REFERENCES CITED The following references are of record in the ille ofthis patent:

UNITED STATES PATENTS Number Name Date 816,545 Field Mar. 27, 19062,466,361 Bjornskaas Apr. 5, 1949

